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Effect of long term annealing on the microstructure and tensile properties of hpdc AZ91 Mg alloy

D.G. Leo Prakash, Doris Regener, Leo Prakash Orcid Logo

Journal of Alloys and Compounds, Volume: 467, Issue: 1-2, Pages: 271 - 277

Swansea University Author: Leo Prakash Orcid Logo

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DOI (Published version): 10.1016/j.jallcom.2007.12.046

Abstract

This work is aimed to obtain the effect of long term annealing (LTA) on the tensile properties and on the microstructure of a high pressure die cast (hpdc) AZ91 Mg alloy. Tensile tests were performed on as-cast and LTA for 1000 h at 150 and 200 °C hpdc castings and the effect of LTA on the tensile p...

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Published in: Journal of Alloys and Compounds
Published: 2009
URI: https://cronfa.swan.ac.uk/Record/cronfa17637
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last_indexed 2018-02-09T04:51:26Z
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spelling 2015-11-02T14:26:56.4366635 v2 17637 2014-04-01 Effect of long term annealing on the microstructure and tensile properties of hpdc AZ91 Mg alloy bd72868c48af6c0b04bf9f6bb48ce324 0000-0002-8812-8927 Leo Prakash Leo Prakash true false 2014-04-01 MTLS This work is aimed to obtain the effect of long term annealing (LTA) on the tensile properties and on the microstructure of a high pressure die cast (hpdc) AZ91 Mg alloy. Tensile tests were performed on as-cast and LTA for 1000 h at 150 and 200 °C hpdc castings and the effect of LTA on the tensile properties such as yield strength (YS), ultimate tensile strength (UTS), ductility and fracture strain (FS) are confirmed. Additionally, explanations on micro failure mode of the material are presented to explain the influence of different micro features on failure of the material. The average size, area fraction and clustering tendency of βm (massive) and βc+d (continuous + discontinuous) Mg17Al12 particles are quantified and their effects on LTA are obtained. The results confirm that the UTS, YS, ductility and FS are mainly influenced by the area fraction, size distribution and spatial arrangement of β particles. Journal Article Journal of Alloys and Compounds 467 1-2 271 277 AZ91 alloy; High pressure die casting; Long term annealing; Microstructure; Micro–macro interactions 7 1 2009 2009-01-07 10.1016/j.jallcom.2007.12.046 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2015-11-02T14:26:56.4366635 2014-04-01T10:09:13.7047574 College of Engineering Engineering D.G. Leo Prakash 1 Doris Regener 2 Leo Prakash 0000-0002-8812-8927 3
title Effect of long term annealing on the microstructure and tensile properties of hpdc AZ91 Mg alloy
spellingShingle Effect of long term annealing on the microstructure and tensile properties of hpdc AZ91 Mg alloy
Leo Prakash
title_short Effect of long term annealing on the microstructure and tensile properties of hpdc AZ91 Mg alloy
title_full Effect of long term annealing on the microstructure and tensile properties of hpdc AZ91 Mg alloy
title_fullStr Effect of long term annealing on the microstructure and tensile properties of hpdc AZ91 Mg alloy
title_full_unstemmed Effect of long term annealing on the microstructure and tensile properties of hpdc AZ91 Mg alloy
title_sort Effect of long term annealing on the microstructure and tensile properties of hpdc AZ91 Mg alloy
author_id_str_mv bd72868c48af6c0b04bf9f6bb48ce324
author_id_fullname_str_mv bd72868c48af6c0b04bf9f6bb48ce324_***_Leo Prakash
author Leo Prakash
author2 D.G. Leo Prakash
Doris Regener
Leo Prakash
format Journal article
container_title Journal of Alloys and Compounds
container_volume 467
container_issue 1-2
container_start_page 271
publishDate 2009
institution Swansea University
doi_str_mv 10.1016/j.jallcom.2007.12.046
college_str College of Engineering
hierarchytype
hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 0
active_str 0
description This work is aimed to obtain the effect of long term annealing (LTA) on the tensile properties and on the microstructure of a high pressure die cast (hpdc) AZ91 Mg alloy. Tensile tests were performed on as-cast and LTA for 1000 h at 150 and 200 °C hpdc castings and the effect of LTA on the tensile properties such as yield strength (YS), ultimate tensile strength (UTS), ductility and fracture strain (FS) are confirmed. Additionally, explanations on micro failure mode of the material are presented to explain the influence of different micro features on failure of the material. The average size, area fraction and clustering tendency of βm (massive) and βc+d (continuous + discontinuous) Mg17Al12 particles are quantified and their effects on LTA are obtained. The results confirm that the UTS, YS, ductility and FS are mainly influenced by the area fraction, size distribution and spatial arrangement of β particles.
published_date 2009-01-07T03:27:29Z
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score 10.898149